GB2325785B - Directivity control antenna apparatus - Google Patents

Directivity control antenna apparatus

Info

Publication number
GB2325785B
GB2325785B GB9818240A GB9818240A GB2325785B GB 2325785 B GB2325785 B GB 2325785B GB 9818240 A GB9818240 A GB 9818240A GB 9818240 A GB9818240 A GB 9818240A GB 2325785 B GB2325785 B GB 2325785B
Authority
GB
United Kingdom
Prior art keywords
antenna apparatus
directivity control
control antenna
directivity
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9818240A
Other versions
GB2325785A (en
GB9818240D0 (en
Inventor
Takashi Fukagawa
Makoto Hasegawa
Akihiko Matsuoka
Naoki Adachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP22634596A external-priority patent/JP3204111B2/en
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB9818240D0 publication Critical patent/GB9818240D0/en
Publication of GB2325785A publication Critical patent/GB2325785A/en
Application granted granted Critical
Publication of GB2325785B publication Critical patent/GB2325785B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
GB9818240A 1996-08-28 1997-08-13 Directivity control antenna apparatus Expired - Fee Related GB2325785B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22634596A JP3204111B2 (en) 1996-08-28 1996-08-28 Directivity control antenna device
GB9717163A GB2316807B (en) 1996-08-28 1997-08-13 Directivity control antenna apparatus

Publications (3)

Publication Number Publication Date
GB9818240D0 GB9818240D0 (en) 1998-10-14
GB2325785A GB2325785A (en) 1998-12-02
GB2325785B true GB2325785B (en) 1999-05-05

Family

ID=26312062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9818240A Expired - Fee Related GB2325785B (en) 1996-08-28 1997-08-13 Directivity control antenna apparatus

Country Status (1)

Country Link
GB (1) GB2325785B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088003A (en) * 1998-12-28 2000-07-11 Nortel Networks Corporation Six sector antenna structure
JP3341701B2 (en) * 1999-03-05 2002-11-05 日本電気株式会社 Array antenna transmitter
US6745051B1 (en) 2000-07-10 2004-06-01 Nortel Networks Limited Six sector antenna structure
JP3575437B2 (en) * 2001-05-10 2004-10-13 日本電気株式会社 Directivity control device
US7092673B2 (en) * 2002-12-27 2006-08-15 Nortel Networks Limited Angle of arrival estimation in a wireless telecommunications network
FR2888672B1 (en) * 2005-07-18 2011-05-27 Mat Equipement ANTENNA WITH INCLINATION ANGLE AND CONFORMATION OF THE ADJUSTABLE RADIATION LOBE
RU2749652C2 (en) * 2019-11-25 2021-06-16 Общество с ограниченной ответственностью "ГОУДИДЖИТАЛ" Indoor television antenna

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266998A (en) * 1992-05-11 1993-11-17 Motorola Inc Beam pattern equalization method for an adaptive array
GB2305578A (en) * 1995-09-18 1997-04-09 Motorola Inc Communication system with adaptive beam pointing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266998A (en) * 1992-05-11 1993-11-17 Motorola Inc Beam pattern equalization method for an adaptive array
GB2305578A (en) * 1995-09-18 1997-04-09 Motorola Inc Communication system with adaptive beam pointing

Also Published As

Publication number Publication date
GB2325785A (en) 1998-12-02
GB9818240D0 (en) 1998-10-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070813